If we can't cheer for them at least we can laugh at them! Someone on my softball team did this and it was bad then. This is a Major League baseball player.
Thole is in his prime though and he was tearing it up in AAA. I don't know what to attribute his lack of offensive success since his return though. Trying too hard maybe? Lack of BABIP luck?
Looking at his velocity chart of his FB for this year, he does seem to be losing some velocity as well the velocity has been varying more (not sure if that is intentional to throw off hitters)